body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
            'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
            sans-serif;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
}

code {
      font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
            monospace;
}